The easiest way to figure out who is confirmed as participating is to go to the SBS map. You can put in 07666 and dining to find Kosher restaurants in Teaneck. If any of these restaurants offer gift cards you can buy them in $10 increments and use it a different day as well

Here is a quick list of what I have found that I know is kosher. or sells kosher items There are others there that I am not familiar with but are likely kosher as well:

ChopStix

Nobo

Sammy's Pizza and Bagels

Sushi Metsuyan

Kosher Experience

Dougie's

Mocha Bleu

Noah's Ark

Bumble Berry

Wine Country

Carvel on Hackensack Ave.

I'm sure there are others. If you find any please leave a comment and I can add it to the list.